Into the Killik Warrens

SIS Agent Essor has asked you to recovering data spikes important to the Republic's efforts on Alderaan. The agent carrying them was abducted by Killiks on his way back. The agent is likely lost, but the data spikes may still be intact.

Head to the Ruur Killik Burrows in King's Pass and recover the data spikes.

First, the reward seems to be wrong. I got a blue quality lockbox and a credit box. Location is in the killiks cave in King's pass.

I soloed all three heroic quests with a level 39 Jedi Shadow kinetic spec. I have not done the bonus quest because I was not able to find those eggs in stage 1.
This is the hardest one of the three to solo because you cannot pick your targets. Every data spike is near a group that composes of two elites of more than 20k HP. It's almost essential to bring a healer companion to outlast them even if you can CC one of them, thus slowing down even more. The narrow passages in the cave also make stealth less useful. However, data spikes do respawn faster than the mobs, so you can use one data spike multiple times.
Be sure to buy the 2,000 credit consumable (forgot name) at a vendor (who also sells the 10,000 credit MGGS which is useful in getting multiple datacrons) in Juran mountains. There is an endurance +3 datacron in the cave.